2 years ago

Available Answers A. 6 B. 9 C. 21 D.30

Mathematics

2 answers:

Tom [10]2 years ago

6 0

3x+12 = 5x
-3x. -3x

12 = 2x
÷2. ÷2

6 = x

ANSWER: A

Tomtit [17]2 years ago

5 0

B is the answer because it's 9 of the repeating digits on the paper. The y intercept is 5 degrees

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Fifteen 2 inch nails weigh 35 grams. How many of these nails weigh 175 grams? Can you explain how to do this please thankyou so

polet [3.4K]

Solving:

1) Pass: Make the rule three (Directly proportional)

Two inch nails ______ grams (Weight)
15 ----------------------------35
n ----------------------------- 175

2) Pass: Multiply cross

$35*n = 15*175$

3) Pass: Simplify
$35*n = 15*175$
$35n = 2625$
$n = \frac{2625}{35}$
$\boxed{n = 75}$

Answer:
75 nails weigh 175 grams

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